: Nitro removed the full serial number key from the registry in v13 and newer builds of v12 to prevent license theft. 5. Check Physical Retail Packaging
For older versions of Nitro Pro (v12 and earlier), the serial number might be stored in the Windows Registry. how to find my nitro pro serial number
: HKEY_LOCAL_MACHINE\SOFTWARE\Nitro\Pro\x (where 'x' is your version number). : Nitro removed the full serial number key
: If you purchased your license before June 2008, the email would have come from "Element 5". 2. Use the Official Nitro Licensing Portal Use the Official Nitro Licensing Portal A window
A window will appear showing the version and a partial serial number (e.g., 504945XXXXXXXXXXXX ). 4. Locate via Windows Registry (Older Versions Only)
Look for a label on the back of the envelope containing the installation CD.
: Look for keywords like "Nitro Pro order," "Reference #," or "Cleverbridge" (Nitro's primary payment partner).